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Finding the Fourth Proportional to 14,720.70, 22,066.65 and 7,704.30

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Solution

The fourth proportional to 14,720.70, 22,066.65 and 7,704.30 is: 11,548.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.70 : 22,066.65 = 7,704.30 : x
  2. Step 2: Convert to fraction form
    14,720.70/22,066.65 = 7,704.30/x
  3. Step 3: Cross multiply
    14,720.70x = 22,066.65 × 7,704.30
  4. Step 4: Simplify right side
    14,720.70x = 170,008,091.60
  5. Step 5: Solve for x
    x = 170,008,091.60/14,720.70
  6. Step 6: Final answer
    x = 11,548.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.